3,384 research outputs found

    A New Affordable Masonry System Based on Unfired Clay Sandwich Panel

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    Nowadays, construction is one of the main sectors that produces waste and consume more materials and energy, so there is a growing need for alternative construction technologies that allow us to modify this situation. In this context, this paper presents the development of an innovative proposal for an industrialized outdoor enclosure. This solution is based on a constructive system with prefabricated insulated sandwich panels, produced on the basis of a new eco-efficient composite material, based on raw stabilized clay. In this way, it is possible, prioritize environmental issues to significantly reduce the environmental impact generated during the manufacture of the piece. The use in the construction of buildings material such as stabilized raw clay can be an alternative to achieve buildings of nearly zero energy consumption. They are known both from a thermal comfort and ability to regulate temperature and humidity, as well as being materials that contain much less embodied energy. This study is a comparative analysis of building systems, as well, as a serie of selected patent systems and copyrighted materials. On the other hand, it also analyzes their enforcement against the values established by the Spanish building code

    Ciclo de mejora para la innovación docente aplicado en materias de un área técnica arquitectónica

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    La presente comunicación consiste en el relato completo de la experiencia docente del diseño y los resultados de la aplicación de un Ciclo de Mejora (CDM) en distintos temas de una asignatura del Área Técnica Arquitectónica. La viabilidad de la metodología empleada y la secuencia específica de actividades son analizadas con objeto de obtener las conclusiones precisas para lograr la mayor efectividad del aprendizaje de este tipo de materias en las que prevalecen los contenidos procedimentales y el estudio de casos y problemas. El CDM ha sido monitorizado en su integridad como un estudio específico de casos dentro del Proyecto de Excelencia del Plan Estatal 20013-16 titulado La Formación Docente del Profesorado Universitario. Progresos y Obstáculos de los Participantes en un Programa Basado en Ciclos de Mejora de su Práctica

    Monitoring water-soil dynamics and tree survival using soil sensors under a big data approach

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    ArticleThe high importance of green urban planning to ensure access to green areas requires modern and multi-source decision-support tools. The integration of remote sensing data and sensor developments can contribute to the improvement of decision-making in urban forestry. This study proposes a novel big data-based methodology that combines real-time information from soil sensors and climate data to monitor the establishment of a new urban forest in semi-arid conditions. Water-soil dynamics and their implication in tree survival were analyzed considering the application of di erent treatment restoration techniques oriented to facilitate the recovery of tree and shrub vegetation in the degraded area. The synchronized data-capturing scheme made it possible to evaluate hourly, daily, and seasonal changes in soil-water dynamics. The spatial variation of soil-water dynamics was captured by the sensors and it highly contributed to the explanation of the observed ground measurements on tree survival. The methodology showed how the e ciency of treatments varied depending on species selection and across the experimental design. The use of retainers for improving soil moisture content and adjusting tree-watering needs was, on average, the most successful restoration technique. The results and the applied calibration of the sensor technology highlighted the random behavior of water-soil dynamics despite the small-scale scope of the experiment. The results showed the potential of this methodology to assess watering needs and adjust watering resources to the vegetation status using real-time atmospheric and soil datainfo:eu-repo/semantics/publishedVersio

    Implementation of a quality management system in the management staff of educational establishments Cundinamarca

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    El presente proyecto responde a la necesidad de desarrollar una investigación acerca de cómo implementar un Sistema de Gestión de Calidad en la Dirección de Personal de Instituciones Educativas perteneciente a la Secretaria de Educación del Departamento de Cundinamarca, basados en la Ley 872 de 2003 y su decreto reglamentario 4110 de 2004, que estableció de manera oficial la Norma NTCGP 1000:2004 y más tarde actualizada NTCGP 1000:2009 cumpliendo lo que esta menciona en su artículo 1, que el propósito del Sistema de Gestión de Calidad es servir como “ una herramienta de gestión sistemática y transparente que permita dirigir y evaluar el desempeño institucional, en términos de calidad y satisfacción social en la prestación de los servicios a cargo de las entidades y agentes obligados, la cual estará enmarcada en los planes estratégicos y de desarrollo de tales entidades”This Project responds to the need for development a research about how to implementing a Quality Management System at The Public Educational Institutions human resource department in Cundinamarca Secretary of Education. All this based on The 872 of 2003 Law and The 4110 of 2004 Decree. This last one established The NTCGP 1000:2004 as a Oficial Norm that was updated later to The NTCGP 1000:2009 where in his first article says that the purpose of a Quality Management System is to be “a systematic management tool that allows to manage and evaluate the institutional performance in terms of the quality and the social satisfaction about the education services provided by the entities and agents in charge of it. This tool will be included in strategic plans and the development of those entities”

    The packing number of the double vertex graph of the path graph

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    Neil Sloane showed that the problem of determine the maximum size of a binary code of constant weight 2 that can correct a single adjacent transposition is equivalent to finding the packing number of a certain graph. In this paper we solve this open problem by finding the packing number of the double vertex graph (2-token graph) of a path graph. This double vertex graph is isomorphic to the Sloane's graph. Our solution implies a conjecture of Rob Pratt about the ordinary generating function of sequence A085680.Comment: 21 pages, 7 figures. V2: 22 pages, more figures added. V3. minor corrections based on referee's comments. One figure corrected. The title "On an error correcting code problem" has been change

    Comportamiento de los déficit financieros: Causa de una ineficiente administración pública estatal y municipal

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    La Administración Pública se ha materializado como uno de los principales entes de estudio en las áreas de Gobierno por cumplir múltiples funciones en favor a la sociedad, sus recursos, sus políticas y su conformación de la misma, pero a lo largo del tiempo, de los cambios políticos y de las nuevas implantaciones económicas e inclusive mercantiles se ha visto considerablemente afectada. Así, variables como el aumento de la población, la amplia gama de partidos políticos con tendencias o ideologías muy distintas unos de otros, duración o estancia de los gobiernos en el poder, ámbitos políticos y manipulación de estancias u organismos exteriores a los de nuestro país (internacionales) han sido la principal causa del decline político-administrativo, empero destaquemos que principalmente se ha visto reflejado en el aspecto económico. En las entidades federativas y municipios que conforman a México se han arrojado un sinfín de obstáculos y limitantes que evita tener un equilibrio o estabilidad financiera en favor al progreso comunitario y económico del país

    Exploring the Interplay between CAD and FreeFem++ as an Energy Decision-Making Tool for Architectural Design

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    The energy modelling software tools commonly used for architectural purposes do not allow a straightforward real-time implementation within the architectural design programs. In addition, the surrounding exterior spaces of the building, including the inner courtyards, hardly present a specific treatment distinguishing these spaces from the general external temperature in the thermal simulations. This is a clear disadvantage when it comes to streamlining the design process in relation to the whole-building energy optimization. In this context, the present study aims to demonstrate the advantages of the FreeFem++ open source program for performing simulations in architectural environments. These simulations include microclimate tests that describe the interactions between a building architecture and its local exterior. The great potential of this mathematical tool can be realized through its complete system integration within CAD (Computer-Aided Design) software such as SketchUp or AutoCAD. In order to establish the suitability of FreeFem++ for the performance of simulations, the most widely employed energy simulation tools able to consider a proposed architectural geometry in a specific environment are compared. On the basis of this analysis, it can be concluded that FreeFem++ is the only program displaying the best features for the thermal performance simulation of these specific outdoor spaces, excluding the currently unavailable easy interaction with architectural drawing programs. The main contribution of this research is, in fact, the enhancement of FreeFem++ usability by proposing a simple intuitive method for the creation of building geometries and their respective meshing (pre-processing). FreeFem++ is also considered a tool for data analysis (post-processing) able to help engineers and architects with building energy-efficiency-related tasks

    On the Influence of Shade in Improving Thermal Comfort in Courtyards

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    This study analyzes the thermal performance of courtyards in traditional buildings in the city center of Córdoba (South of Spain), one of them displaying a shading component, to determine the influence of this precise element. The courtyards have been monitored simultaneously during a summer period when temperatures during the day reached over 45 °C. The obtained data was contrasted, and we confirmed that the shading element provided an improvement of the thermal performance of the courtyard which doubled the thermal leap between outdoor and inside the courtyard temperatures when the shading element was installed, in comparison to the courtyard without shade. Therefore, the tempering effect of courtyards can be significantly improved by means of using these simple elements
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